Thanks for the answers, they are helpful; I have always been curious about reference prints and the people who use the 'fine art' type bought from vendors and workshops. I remember that, in the '80s, "The Friends of Photography" offered fine art prints to it's members.
It is not that I do not know how to print; when I freelanced I did quite a bit of product and model printmaking for other photographers and myself. Sometimes I would make several hundred tray processed prints in one order of many dozens of product shots for cataloges, POP, flyers and press release packages.
I can not even begin to guess how many times I worked on models' shots, for compcards, etc. Mostly the work was straight forward and required very little imagination or tweaking.
Sometimes, with my own and others' work of models and non-product subjects, I would be free to experiment with effects, bleaching, toning, composing multiple images on the same sheet, etc. This was the darkroom work I that really enjoyed, and though I will say the body of this work was solid, being in a Kodak/Ilford sort of cage really did not do much to facilitate the sort of work I wish to do today.
The only occasions that I was asked or needed to use a reference print was when a reorder was needed or a last minute product was shot and needed to fitting with an earlier body of work.
Now, after having been away from printmaking so long, I am trying to pick up on methods of working that I might not have considered 17 years ago, when I left darkroom work behind. Looking at many of the works here in the gallery and elsewhere, I wish that I had collected 'artistic' photographic prints from other photographers so that I could make side-by-side comparisons as I work.
The fact is that in recent years I've learned to value such hands on approaches, as I have become involved in traditional printmaking, woodcuts etc and have found that when I handle the finished work of others, the inks, papers, methods used and other elements become clear and often times leads to insights not possible by simply viewing reproductions, scans/photos on the internet or behind glass.
Hopefully, I will be able as time goes on, to assemble b&w photographs from those members here and elsewhere, that embody the aesthetics of subject and b&w printmaking that I wish to embrace.
Eli